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Hamilton Khaki Aviation Pilot Auto vs Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)
Hamilton's pilot watch meets Omega's chronograph
Quick Verdict
The Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500) offers Hamilton/ETA Automatic precision in the tier below the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) ($10,000–$25,000). The Khaki Aviation Pilot Auto measures 38mm and is rated 100m (10 ATM). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) counters with Swiss Made craftsmanship and 1200m (120 bar) water resistance. Both are exceptional watches for their respective tiers.
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Omega
Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)
$10,000–$25,000
Specifications Compared
| Feature | Hamilton Khaki Aviation Pilot Auto | Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) |
|---|---|---|
| Price | $1,000–$1,500 | $10,000–$25,000 |
| Case Size | 38mm | 55 x 48mm, 18.26mm thick, 48mm lug to lug |
| Movement | Automatic H-10 (ETA 2824-2 base) | Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function |
| Caliber Type | Hamilton/ETA Automatic | Omega 8912, Master Chronometer |
| Power Reserve | 80 Hours | About 60 hours |
| Water Resistance | 100m (10 ATM) | 1200m (120 bar) |
| Crystal | Sapphire Crystal | Flat sapphire, anti-reflective both sides |
| Case Material | Stainless Steel | Grade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crown |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Omega's approach
The Hamilton Khaki Aviation Pilot Auto features a Stainless Steel case at 38mm with Sapphire Crystal protection. The Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) offers Grade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crown construction at 55 x 48mm, 18.26mm thick, 48mm lug to lug with Flat sapphire, anti-reflective both sides. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic H-10 (ETA 2824-2 base) vs Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function
The Khaki Aviation Pilot Auto runs the Automatic H-10 (ETA 2824-2 base) (Hamilton/ETA Automatic, 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) uses the Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function (Omega 8912, Master Chronometer, About 60 hours reserve) at standard. The Khaki Aviation Pilot Auto edges ahead on power reserve.
Wearability & Fit
38mm vs 55 x 48mm, 18.26mm thick, 48mm lug to lug — different wrist presence
At 38mm, the Khaki Aviation Pilot Auto wears more compactly on smaller wrists compared to the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at 55 x 48mm, 18.26mm thick, 48mm lug to lug. Water resistance differs: 100m (10 ATM) vs 1200m (120 bar).
Value & Cost of Ownership
Hamilton sits in the lower tier
The Hamilton Khaki Aviation Pilot Auto sits at $1,000–$1,500 and the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at $10,000–$25,000. On the specs that outlast any price: the Khaki Aviation Pilot Auto uses Sapphire Crystal with 80 Hours, against Flat sapphire, anti-reflective both sides and About 60 hours on the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial). Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 1200m (120 bar)
The Khaki Aviation Pilot Auto is rated to 100m (10 ATM) while the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) handles 1200m (120 bar). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) offers superior water resistance.
Our Verdict
Hamilton
Khaki Aviation Pilot Auto
Choose the Hamilton Khaki Aviation Pilot Auto if you prioritize Hamilton/ETA Automatic engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $1,000–$1,500, it delivers Automatic H-10 (ETA 2824-2 base) with 80 Hours power reserve.
View the dossierOmega
Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)
Choose the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) if you value Omega 8912, Master Chronometer technology, Swiss Made heritage, and 55 x 48mm, 18.26mm thick, 48mm lug to lug proportions. At $10,000–$25,000, the Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function with About 60 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Khaki Aviation Pilot Auto and Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Omega delivers Swiss Made engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.
